Hmm, that's a tricky one for me to answer. I've suggested several prose pieces, but most were in the Fan Fiction gallery and not the Literature gallery. I don't know if you'd count those (but, um, 3 or 4 of those were featured - I lost count ). I have suggested Literature gallery pieces, but the one that was featured was chosen by a different CV than I sent it to, and before the CV I sent it to had a chance to read my note. So, one I suggested did get a DD, but not because I suggested it.
I've suggested 14pieces and half of them got featured. It's mostly the literature pieces I've suggested that were featured. Apparently I suck at determining what good visual art is for the general public lol. I actually keep a folder for it to keep track.
Before, they didn't get back to me at all whether it was accepted or declined, but the last few pieces that were accepted they sent me a note telling me it was accepted. Which is nice. Another time, they sent me a note telling me they liked the author, but wasn't too keen on the exact piece I suggested and asked if I liked another piece from the author. I said I did. We worked something out and he gave me credit for the suggestion.
I seldom read stuff here(a few pieces a week maybe) and those tend not to be DD quality stuff. They also tend to be first chapters of longer works so suggesting them as a DD is a bit tricky since it's not a complete work.
Few first chapters are so good that they'd stand on their own without the rest of the work..and to me a single chapter is a bit like an unfinished painting so granting in an DD is a bit..
Too bad dA makes it difficult to post an entire novel as a single deviation. PDF files being the only way and so few people use it. Novels sort of get the shaft in that regard and having them split into individual chapters is probably why you don't see that many of them featured as an DD..or even DLD.
To be honest, it needs a lot of work to be something I would feature personally. I wasn't grabbed by the initial paragraph and found it difficult to get into. Perhaps it needs a good polish and redraft first?